Wettable silicon elastomer for the manufacture of contact lenses

Details Wettable silicon elastomer for the manufacture of contact lenses Wettable silicon elastomer for the manufacture of contact lenses

1988-10-24

1990-07-10

Marquis, Melvyn I.

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Mixing of two or more solid polymers; mixing of solid...

26433111, 264340, 525 5421, 525 5424, 525474, 525478, 525476, C08G18000

Patent

active

049407511

ABSTRACT:
The wettable silicone elastomer is obtained by crosslinking of a composition of epoxidized silicones. The elastomer thus obtained is made wettable by grafting saccharide compounds on epoxy groups of the elastomer.
The invention is applied in particular to the manufacture of contact lenses.

REFERENCES:
patent: 3556754 (1971-01-01), Marsden
patent: 4012568 (1977-03-01), Dean et al.
patent: 4365050 (1982-12-01), Ivani
patent: 4588624 (1986-05-01), Nygren et al.
patent: 4673584 (1987-06-01), Nygren et al.
patent: 4806595 (1989-02-01), Noishiki et al.

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